The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 21, 1993
Filed:
Feb. 20, 1992
Applicant:
Inventors:
Juergen Meier, Ridgewood, NJ (US);
Gerhard Arnold, Ringwood, NJ (US);
Oswald Helmling, Hasselroth, DE;
Assignee:
Degussa Corporation, Ridgefield Park, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
D21C / ; D21C / ;
U.S. Cl.
CPC ...
162 65 ; 162 76 ; 162 78 ; 162 88 ;
Abstract
Delignification and bleaching of lignocellulosic material is enhanced after the pulp has been treated with peroxomonosulfuric acid.